We are manufacturing Amplifiers & Effectors as well Acoustic Guitar Preamp &, Magnetic Pickups.

扩音器、效果器 及 木吉他前置音箱和磁性拾音器的制造商.

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The CCD signal preamp with low pass filter is used to minimize the readout noise.

通过使用带低通滤波器的前置放大器降低了读出噪音,研究了读出噪音与读出速度的关系.

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